6. ________ are used to ensure more accurate quantification in chromatographic techniques
Retardation factors
Resolutions
Internal standards
Distribution ratios
7. ______ is a measure of the spread of results, can be concentration dependant, can be matrix dependant
Precision
Bias
8. Calibration is used to determine an accurate amount of analyte in an unknown sample
True
False
9. To ensure equipment is working accurately and correctly, what is useful
Determine the column efficiency (n)
Determine the calibration
Determine the distribution ratio
Calculate a sensitivity factor (a)
10. ____________ arises from random error and effects
Precision
Bias
11. Calibration is not needed to validate a method
False
True
12. Major sources of error can be found in the _________, instrument and methods used
Irobot
Operator
Machines
Celotape
13. PAR means peak area ratio
True
False
14. Shewhard chart and Cusum chart are different types of
Method charts
Quality control charts
Mean charts
Maybellene
15. issues arise for precision when replicates are not independant, conditions do not represent working practice, and the use and availability of matrix must match representative samples
True
Fasle
16. Random errors
Indeterminate errors
Determinate errors
17. bias = (measured-actual)/actual
True
False
18. Where the relationship is established between a signal/measurement/response, and the amount/conc of analyte
Resolution
Calibration
Drug quantity
Analyte
19. Replicate samples should be analysed to avoid issues with bias
True
False
20. The minimum amount of analyte that can be quantified with acceptable precision and uncertainty